Sierra Sleep by Ashley
Sierra Sleep Peak 2.0 10 Hybrid Mattress
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The verdict: the Sierra Sleep Peak 2.0 10" Hybrid is a straightforward, honestly built coil-and-foam bed for anyone who wants a true medium feel with real springs underneath them, not just a slab of foam. If you sleep on your back or move between your back and side through the night, and you like the idea of a mattress that still has some coil responsiveness to it, this is a simple, well-made way to get there.
What you're lying on
This is the 10 inch hybrid in Ashley's Peak 2.0 lineup, model M202, and the build stacks in a sensible order. On top sits a Hyper Cool 4-way stretch knit cover, made to move with you and pull heat away from the surface rather than trap it. Underneath that is a layer of flame-retardant polyester comfort fiber and luxury loft fiber for a soft initial hand, then a high-density plush quilt foam layer that does the real work of cushioning your shoulders and hips. A base support foam layer adds stability just above the coil system, and the support core itself is a power-packed wrapped coil unit with Ashley Edge reinforcement running the perimeter, so the mattress holds its shape corner to corner instead of feeling weak where you sit down to get dressed.
How it feels
Ashley rates this a medium comfort level, and the construction backs that up: enough quilted foam on top to relieve pressure, enough wrapped coil support underneath that you rest on the mattress instead of sinking into it. It's the classic middle-of-the-road feel, not soft and not firm, with a bit of the coil bounce that all-foam beds don't have. At 10 inches it's also a lean profile, so it dresses easily with standard sheets and won't tower over a lower platform bed.
Who it suits
- Back sleepers who want their spine kept level without a soft, sinking surface
- Combination sleepers who shift positions and need a bed that doesn't fight them either way
- Anyone moving off an old innerspring who wants that familiar coil feel again, with better foam on top
- Couples who want coil support without feeling every toss and turn, thanks to the wrapped coils and Ashley Edge perimeter support
- Adjustable base owners, since this hybrid is built to flex with a base that raises the head or foot end
If you're a committed side sleeper who wants a deep memory-foam hug, or you specifically want a firm or plush feel rather than medium, this particular build may not be the first one to try; ask the showroom team about the other comfort levels in the same collection.
Built to last
Ashley backs the Peak 2.0 10" Hybrid with a 10-year non-prorated warranty, and it's rated compatible with adjustable bases as well as standard foundations. Give a new coil mattress a short adjustment period once it's set up; it's normal for a bed to feel a little different than it did on the showroom floor for the first week or two while everything settles in.
The best way to know if a medium hybrid is right for you is to lie on this exact mattress. Stop by one of our Kentucky showrooms, spend a few minutes on it in your usual sleeping position, and let the floor team walk you through how it compares to the rest of the Sierra Sleep lineup.
What makes this mattress different
True medium hybrid feel
Cushioned quilt foam over a wrapped coil core gives you contouring up top and honest coil support underneath, not an all-foam sink.
Power-packed wrapped coils with Ashley Edge
Individually wrapped coils flex on their own and reinforced perimeter edge support keeps the mattress from feeling weak along the sides where you sit to get dressed.
Hyper Cool 4-way stretch cover
A knit cover engineered to stretch with your movement and pull heat away from the surface, so a coil-and-foam bed doesn't sleep hot.
High-density plush quilt foam
A dense comfort foam layer under the cover relieves pressure at the shoulders and hips before you ever reach the coils.
Lean 10 inch profile
Tall enough for a real comfort layer, low enough to dress with standard sheets and sit comfortably on a lower platform frame.
Adjustable base compatible
Built to flex with a base that raises your head or feet, not just lie flat on a fixed foundation.
Reduced motion transfer
The wrapped coil design isolates movement coil by coil, so a partner getting in or out of bed is less likely to wake you.
10-year non-prorated warranty
Ashley backs the Peak 2.0 10" Hybrid with a full 10-year non-prorated warranty on defects in materials and workmanship.
Coils underneath, cushioned foam on top: a hybrid built the straightforward way
The top layer is a Hyper Cool 4-way stretch knit cover, designed to move with you and keep the surface cool rather than trapping heat against your skin. Below that sits a layer of flame-retardant polyester comfort fiber and luxury loft fiber for initial softness, then a high-density plush quilt foam layer that carries most of the pressure relief.
A base support foam layer adds stability just above the coil system, and the support core itself is a power-packed wrapped coil unit: individually wrapped coils that flex on their own rather than as one connected unit, with Ashley Edge reinforcement running the perimeter so the mattress holds its shape along the sides instead of collapsing where you sit down.
It's a 10 inch build in total, which keeps the whole mattress lean and easy to dress, and it's rated compatible with adjustable bases if you want to raise the head or foot end.
Shop the Sierra Sleep lineup →A medium hybrid for back and combination sleepers
Back sleepers: the quilted foam top gives just enough cushioning at the shoulders while the wrapped coil core keeps your spine level instead of letting your hips sink lower than the rest of you.
Combination sleepers: a true medium feel is the most forgiving setup for anyone who moves between their back and side through the night, since it contours a little without losing the support underneath.
Former innerspring owners: if you grew up on a coil mattress and never fully adjusted to all-foam, the wrapped coil core here gives you that familiar responsiveness with a better comfort layer on top.
Couples: the wrapped coil design and Ashley Edge perimeter support help isolate movement, so one partner shifting around or getting up doesn't roll all the way across the bed.
Adjustable base owners: the hybrid build is made to flex with a base that raises your head or feet, not just lie flat.
Probably not for you if: you're a dedicated side sleeper looking for a deep memory-foam cradle, or you specifically want a firm or plush feel; ask the showroom team about the other comfort levels in the Peak 2.0 collection.
Specifications
| Height | 10" |
|---|---|
| Feel | Medium |
| Firmness | Medium (a true middle-of-the-road feel, not firm or plush) |
| Construction | Hyper Cool 4-way stretch knit cover over flame-retardant polyester comfort fiber, luxury loft fiber, and high-density plush quilt foam, then a base support foam layer over a power-packed wrapped coil unit with Ashley Edge perimeter support: 10 inches total. |
| Cooling | A Hyper Cool 4-way stretch knit cover sits at the surface to help pull heat away, so a coil-and-foam build doesn't trap warmth the way older mattress covers can. |
| Motion isolation | Wrapped coils flex independently of one another, and Ashley Edge perimeter support helps isolate movement, reducing how much you feel a partner shifting compared to a traditional connected coil system. |
| Warranty | 10-year non-prorated warranty |
Frequently asked questions
How firm is the Sierra Sleep Peak 2.0 10" Hybrid?
It's rated a medium comfort level: enough quilted foam on top to relieve pressure at the shoulders and hips, with a wrapped coil core underneath that keeps you supported rather than sinking in. It's a middle-of-the-road feel, not a soft plush bed and not a firm one.
Is this a hybrid or an all-foam mattress?
It's a true hybrid. A quilted foam comfort layer sits on top of a power-packed wrapped coil unit with Ashley Edge perimeter support, so you get foam-level cushioning with the support and airflow of individually wrapped coils underneath.
Will I feel my partner move around at night?
Less than you would on a traditional innerspring. The wrapped coils flex independently of one another, which isolates movement instead of transferring it across the whole mattress.
Does it work with an adjustable base?
Yes, it's rated compatible with adjustable bases, so it can flex if you like to raise your head or feet. It also works fine on a standard flat foundation.
Is 10 inches enough mattress?
Yes, for a hybrid this height is plenty of room for a real coil support core plus a genuine foam comfort layer on top. The lean profile also makes it easier to dress with standard sheets and keeps it from towering over a lower platform frame.
What's the warranty on this mattress?
Ashley backs the Peak 2.0 10" Hybrid with a 10-year non-prorated warranty against defects in materials and workmanship.
Is there an at-home sleep trial with this mattress?
No. Sierra Sleep mattresses at Mattress Overstock don't come with an at-home trial period. The way to know if the feel is right for you is to lie on this exact mattress in one of our Kentucky showrooms before you buy, in whatever position you actually sleep in.
Can I see this mattress in person near me?
Yes, and with a mattress that's always the better way to decide. Mattress Overstock is a Kentucky-owned company with showrooms in Lexington, Georgetown, Somerset, London, and Richmond. Come lie on this exact Peak 2.0 10" Hybrid in your own sleeping position before you buy.
How is the Peak 2.0 10" Hybrid different from an all-foam Sierra Sleep mattress?
The comfort layer up top is similar foam cushioning either way, but this one sits on a wrapped coil support core instead of a solid foam base. That gives it more airflow, a bit more bounce, and the classic coil responsiveness an all-foam mattress doesn't have.
Buy it from people you can actually visit
- Free local delivery To your home across Central & Eastern Kentucky.
- Free setup We place and set up your new bed in the room.
- Free old-mattress haul-away The old one goes out the same day the new one comes in.
Independently owned in Kentucky since 2012. Walk in any day (no appointment) and someone who actually knows the floor will help you find the right fit.
Still deciding?
Try it in person at any Kentucky showroom
Walk into any Mattress Overstock location, lie down, and feel the difference yourself. No appointment, no pressure. Our team has over 100 years of combined mattress experience and we're here to help you find the right fit.
